ggplot2에서 색상 표 확장 방법

Question

안녕하세요 여러분, 저는 그래픽을 ggplot2에서 만들고 있지만 다른 색상을 추가하고 싶습니다. 한 가지 방법은 RColorBrewer 패키지의 팔레트를 사용하는 것입니다. 나는이 패키지의 팔레트를 사용했으나 이것을 얻었다. 내가 사용하는 코드는 다음과 같습니다

library(ggplot2) 
library(reshape2) 
library(scales) 
library(RColorBrewer) 
#Graphic 
png(filename = "Atotal.png", width = 1050, height = 900) 
Atotal=ggplot(Melt.Atotal, aes(x = Var2, y = value, fill = Mes)) + 
    geom_bar(stat = "identity") + scale_y_continuous(labels = comma) + scale_fill_brewer(palette="Set3") + 
    annotate("text", x = ncol(AtotalM) - 1.3, y = finalValA1 + 4000000, 
      label = finalValA1f, size = 5) + theme(axis.text.x=element_text(angle=90,colour="grey20",face="bold"),axis.text.y=element_text(colour="grey20",face="bold",hjust=1,vjust=0.8),axis.title.x=element_text(colour="grey20",face="bold"),axis.title.y=element_text(colour="grey20",face="bold"))+xlab('Mes')+ylab('Total')+ ggtitle("Consumo Automotriz (A)")+theme(plot.title = element_text(lineheight=3, face="bold", color="black",family="F",size=24)) 
print(Atotal) 
dev.off() 

이 코드 내부에 scale_fill_brewer(palette="Set3")를 사용의 결과는 다음과 같습니다

Mes의 모든 값이 고려되고 있지

. 내 데이터는 Melt.Atotal이고 변수는 Mes, Var2 및 Value입니다. Melt.Atotal를 구축 할 수있는 코드가 옆에 (내 기본 행렬의 dput() 버전을 추가) :

는

Melt.Atotal <- melt(AtotalMt) 
Melt.Atotal<-transform(Melt.Atotal, Var1 = factor(Var1, colnames(AtotalMt)), 
         Var2 = factor(Var2, rownames(AtotalMt))) 
names(Melt.Atotal)[1] <- "Mes" 

AtotalMt의 dput() 버전은 다음이다 : 당신의 도움에 대한

structure(c(26854799.1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
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2496980.3, 2786647.48, 2380798.87, 2479884.64, 2674568.38), .Dim = c(40L, 
40L), .Dimnames = list(c("jul 10", "ago 10", "sep 10", "oct 10", 
"nov 10", "dic 10", "ene 11", "feb 11", "mar 11", "abr 11", "may 11", 
"jun 11", "jul 11", "ago 11", "sep 11", "oct 11", "nov 11", "dic 11", 
"ene 12", "feb 12", "mar 12", "abr 12", "may 12", "jun 12", "jul 12", 
"ago 12", "sep 12", "oct 12", "nov 12", "dic 12", "ene 13", "feb 13", 
"mar 13", "abr 13", "may 13", "jun 13", "jul 13", "ago 13", "sep 13", 
"oct 13"), c("jul 10", "ago 10", "sep 10", "oct 10", "nov 10", 
"dic 10", "ene 11", "feb 11", "mar 11", "abr 11", "may 11", "jun 11", 
"jul 11", "ago 11", "sep 11", "oct 11", "nov 11", "dic 11", "ene 12", 
"feb 12", "mar 12", "abr 12", "may 12", "jun 12", "jul 12", "ago 12", 
"sep 12", "oct 12", "nov 12", "dic 12", "ene 13", "feb 13", "mar 13", 
"abr 13", "may 13", "jun 13", "jul 13", "ago 13", "sep 13", "oct 13" 
))) 

감사합니다.

Answer 1

Set3에는 12 가지 색상이 있습니다 (?RColorBrewer 참조). 당신이 더 원하는 경우에, 당신은 보간해야

library(grid) # for unit() 
cols <- colorRampPalette(brewer.pal(12, "Set3")) 
myPal <- cols(length(unique(Melt.Atotal$Mes))) 
Atotal <- ggplot(Melt.Atotal, aes(x = Var2, y = value, fill = Mes)) + 
    geom_bar(stat = "identity") + 
    scale_fill_manual(values = myPal) + 
    theme(axis.text.x=element_text(angle=90), 
     legend.text=element_text(size=8), 
     legend.key.height=unit(.1, "cm")) 
Atotal